979661957712 has 20 divisors (see below), whose sum is σ = 2530793390880. Its totient is φ = 326553985888.

The previous prime is 979661957669. The next prime is 979661957777. The reversal of 979661957712 is 217759166979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10204812012 + ... + 10204812107.

It is an arithmetic number, because the mean of its divisors is an integer number (126539669544).

Almost surely, 2^979661957712 is an apocalyptic number.

It is an amenable number.

979661957712 is an abundant number, since it is smaller than the sum of its proper divisors (1551131433168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

979661957712 is a wasteful number, since it uses less digits than its factorization.

979661957712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20409624130 (or 20409624124 counting only the distinct ones).

The product of its digits is 90016920, while the sum is 69.

The spelling of 979661957712 in words is "nine hundred seventy-nine billion, six hundred sixty-one million, nine hundred fifty-seven thousand, seven hundred twelve".